Karyotype analysis ____
a. is a means of detecting and reducing mutagenic agents
b. is a surgical technique that separates chromosomes that have failed to segregate properly during meiosis II
c. can be used in prenatal diagnosis to detect chromosomal mutations and genetic disorders in embryos
d. replaces defective alleles with normal ones
e. is used in DNA analysis for paternity
ANSWER: c
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Whenever the body is re-exposed to an allergen, the binding of IgE antibodies causes:
a. degranulation and inflammation b. the release of antihistamines c. the suppression of the inflammatory response d. the production of clonal cells e. fever
Which of the first three statements about
independent assortment is NOT true?
a. genes on homologous chromosomes assort independently b. genes on the same chromosome that are far apart tend to assort independently c. genes close together on the same chromosome tend to assort independently d. all of the first three statements about independent assortment are NOT true e. one of the first three statements about independent assortment is NOT true
How do tractive forces affect the airways during inspiration?
A) decrease in compliance B) increase in compliance C) increase in airway resistance D) bronchodilation E) decrease in airway resistance
What type of cartilage is found at the ends of the long bones?
A. spongy B. compact C. hyaline cartilage D. fibrocartilage E. elastic cartilage